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本文阐明了一种表示某些介质混合含量如何引起介电常数变化的方程建立过程,这些介质是以微小粉末状态混合起来的,具有不同的介电常数。泡沫塑料是这些混合物的特殊实例之一,电缆工程师和我们一样对这种材料很感兴趣。在本文开头部分,我们的报告引用了瓦格纳曾采用过的方法。瓦格纳根据劳特雷利对位于均匀电场中球形介质内外电场的分析,得到了落入同样大小球体中的无数微小混合物所组成的介质之介电常数。在采用这种原始方法以后,接着根据电极化原理分别进行了验证。其次,本报告还引用了一些基于伯特希尔(荷兰电化学家)书中所揭示的理论以及部分地扩展这些理论的各种观点之研究。就是说,我们首先涉及根据克劳辛斯-摩索提的克分子极化方程所得到的结果,其次在引进威纳的形状序数之后,解释伯特希尔根据布鲁格曼的建议介绍他自己方程的过程。然后再报导对上述一些方程所进行的实验研究。最后,我们从提出的用于泡沫塑料的那些公式中,选出一个公式,给出对泡沫聚乙烯的计算结果。
This paper illustrates the establishment of equations that show how certain media mixing levels cause changes in dielectric constants that are mixed together in the form of fine powders with different dielectric constants. Foam is one of the special examples of these blends and cable engineers are as interested in this material as we do. At the beginning of this article, our report cites Wagner’s approach. Based on the analysis of the electric field inside and outside the spherical medium in the uniform electric field, Wagner obtained the permittivity of the medium consisting of numerous tiny mixtures falling into the sphere of the same size. After adopting this kind of original method, verify according to the principle of electric polarization next respectively. Second, the report cites a number of studies based on the theories revealed in the books by The Butcher Hill (The Netherlands Electrochemist) and various perspectives that extend these theories in part. That is to say, we first deal with the results obtained according to the molecular polarization equation of Claussin-Mosotti, and secondly, after introducing Weiner’s shape ordinances, explain how Bertil introduced him to Brugman’s suggestion The process of your own equation. Then we report the experimental research on some of the above equations. Finally, from the proposed formulas for foams, we choose a formula that gives the result for foamed polyethylene.